These rules are the same in all fifty states. Start with setting the business up, then take on the parts of running it that enforcement actually stops you for.
Everything required before you can legally haul, in the order you actually do it.
The violation small carriers collect most, and it is almost always arithmetic.
The Setup Guide gets you legally operating. Cargo Securement is about what happens after that — the rules an officer applies at a scale, on a load you have already been paid to move. They do not overlap, and neither one repeats the other.
Neither is a filing service and neither is legal advice. Both exist so you can do this yourself, from the regulations, instead of paying someone a percentage of your business for the same information.